Three kinds of web site ranking algorithms used in search engines

How do search engines make the right rankings for so many websites on the internet? Presumably do webmaster want to know this, this is through a set of very complex algorithm calculation, the specific algorithm must not several people know, but the most commonly used three algorithms still need everyone to understand.

1. Frequency position weighted sorting algorithm: As the name implies is that the text from the entire site on the location and the number of times to sort, first of all, the site, different keywords in the content and appear in the title when the difference is very large, the search engine that the title can show a site is doing, If the title appears in the keyword is far more important than the article inside the keyword more importantly. This is now everyone knows the title of a website is very important is evolved from this algorithm. Again, the number of occurrences, a word in a website or a page in the number of times to show that its relevance is stronger, this is the first Lewen proposed automatic indexing method, but also said the keyword density is also from the algorithm inside evolved. The limitation of the word frequency position weighted ranking algorithm is to pay attention to the performance of words in the site and to the ranking of a website, this algorithm is the original search engine mainly used, when the webmaster in the title of the site in the content of what keywords even the picture alt hard to stack keywords, the heap of the more ranked the better.

2.Direct hit algorithm: This algorithm is based on user behavior to the site to sort, the specific search engine in a user search for a word, will record his click on a site after the time to stay, and then go to search the same words, and then to the corresponding site dynamic weighting or drop right, Personally think Baidu more biased, a while ago there is a name for Baidu Click on something, known as the first page of three hours, fire the entire Internet, of course, the fire means to be finished, the principle of this thing is based on direct hit algorithm to design, Through the replacement of IP to simulate the behavior of users to click on a website has reached the goal of rapid rise, of course, now Baidu has made a corresponding adjustment this thing has long been not used, if the use of no doubt to make suicide. This algorithm I think is more and more important, because the search engine does not affect the webmaster to control his ranking, user experience webmaster always can not control it, so can only do the content to retain users. The disadvantage of this algorithm is that the site behind the ranking is a bit unfair, users do not click How to do, so sometimes the search engine will have no reason to enter the home page of the site to the home page, if your station is such don't be excited, will go down in a few days, because search engine is to collect user experience degree.

3.PageRank algorithm: PR algorithm I believe that we are also very familiar with, that is, the number of links to your site or a page more description of the quality of your Web page or say that the higher the authority, your ranking is very good, some people asked, PR is Google's close Baidu what things, Baidu also has a similar PR thing just did not publish out, now some Baidu weight is not Baidu itself is the third party website according to the keyword in Baidu ranking and calculated. Third-party website Baidu Weight is a big limitation, can not calculate the long tail keyword ranking and also can be manipulated, do not make new, Baidu also said recently will be a similar Google PR weight value.

The above is the search engine common sort three algorithm first publishes in Zhengzhou SEO http://www.8abd.com/?p=224 reprint please indicate the source